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These state-sensitive methods ought to be synchronized, at least to ensure memory is written back immediately

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git-svn-id: https://zxing.googlecode.com/svn/trunk@2276 59b500cc-1b3d-0410-9834-0bbf25fbcc57
This commit is contained in:
srowen 2012-04-28 10:35:57 +00:00
parent 4ee80c2150
commit 224568c732
1 changed files with 9 additions and 9 deletions
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18
android/src/com/google/zxing/client/android/camera/CameraManager.java
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@ -71,7 +71,7 @@ public final class CameraManager {
* @param holder The surface object which the camera will draw preview frames into.
* @throws IOException Indicates the camera driver failed to open.
*/
public void openDriver(SurfaceHolder holder) throws IOException {
public synchronized void openDriver(SurfaceHolder holder) throws IOException {
Camera theCamera = camera;
if (theCamera == null) {
theCamera = Camera.open();
@ -97,7 +97,7 @@ public final class CameraManager {
/**
* Closes the camera driver if still in use.
*/
public void closeDriver() {
public synchronized void closeDriver() {
if (camera != null) {
camera.release();
camera = null;
@ -111,7 +111,7 @@ public final class CameraManager {
/**
* Asks the camera hardware to begin drawing preview frames to the screen.
*/
public void startPreview() {
public synchronized void startPreview() {
Camera theCamera = camera;
if (theCamera != null && !previewing) {
theCamera.startPreview();
@ -122,7 +122,7 @@ public final class CameraManager {
/**
* Tells the camera to stop drawing preview frames.
*/
public void stopPreview() {
public synchronized void stopPreview() {
if (camera != null && previewing) {
camera.stopPreview();
previewCallback.setHandler(null, 0);
@ -139,7 +139,7 @@ public final class CameraManager {
* @param handler The handler to send the message to.
* @param message The what field of the message to be sent.
*/
public void requestPreviewFrame(Handler handler, int message) {
public synchronized void requestPreviewFrame(Handler handler, int message) {
Camera theCamera = camera;
if (theCamera != null && previewing) {
previewCallback.setHandler(handler, message);
@ -153,7 +153,7 @@ public final class CameraManager {
* @param handler The Handler to notify when the autofocus completes.
* @param message The message to deliver.
*/
public void requestAutoFocus(Handler handler, int message) {
public synchronized void requestAutoFocus(Handler handler, int message) {
if (camera != null && previewing) {
autoFocusCallback.setHandler(handler, message);
try {
@ -172,7 +172,7 @@ public final class CameraManager {
*
* @return The rectangle to draw on screen in window coordinates.
*/
public Rect getFramingRect() {
public synchronized Rect getFramingRect() {
if (framingRect == null) {
if (camera == null) {
return null;
@ -206,7 +206,7 @@ public final class CameraManager {
* Like {@link #getFramingRect} but coordinates are in terms of the preview frame,
* not UI / screen.
*/
public Rect getFramingRectInPreview() {
public synchronized Rect getFramingRectInPreview() {
if (framingRectInPreview == null) {
Rect framingRect = getFramingRect();
if (framingRect == null) {
@ -235,7 +235,7 @@ public final class CameraManager {
* @param width The width in pixels to scan.
* @param height The height in pixels to scan.
*/
public void setManualFramingRect(int width, int height) {
public synchronized void setManualFramingRect(int width, int height) {
if (initialized) {
Point screenResolution = configManager.getScreenResolution();
if (width > screenResolution.x) {